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92 240 no spark

posted by  Capt Need on  Tue Jul 22 12:01 CST 2014
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last visit: Thu Aug 21 12:29 CST 2014
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Engine won't start - no spark
1992 240, not getting a spark out of the coil, before the the distributor. Replaced the coil, the ignition amplifier, cam sensor, and the ECU, the fuse (#6) is good. There is voltage to the amplifier on terminals 2 & 4. Voltage to the coil. Can anyone help with what I'm missing?








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    Could be missing a ground... 200 1992

    uid 27's pic
    posted by  Art Benstein on  Tue Jul 22 12:10 CST 2014
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    Well, what's missing? You didn't list the ignition computer. We usually call it the ICU for Ignition Control Unit.

    However, they never go bad -- just missing from your list. You need to tell us a lot more about the voltages you measure, including how you took the readings (backprobe while cranking, etc.) and what conditions were when it failed. For instance, there should be voltage on the power stage (amplifier) pin 2, but referenced to the lead portion of the negative battery post, it should be just a few millivolts. Other than that we can all post guesses in response based on what stumped us in the past.
    --
    Art Benstein near Baltimore

    A grenade thrown into a kitchen in France would result in Linoleum Blownapart.







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